When tuning the sound of guitar amplifier, I've been struggling to choose the tube type for reverb mixer position whether ECC803 or ECC83S. ECC803 is higher gain and too much, ECC83S is low gain some time too gentle. Now got MG. Medium gain works just fine. I am very happy to have met this one.

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Matt H.

Staff Member

Top Contributor

May 25th, 2017

This tube has a 5.7 relative 12AX7 voltage gain rating (scale of 1 to 10) when compared to the rest of the tubes in our 12AX7 comparison. For further info please refer to our tech corner article comparing 12AX7 tubes and the spec sheets included on this page.

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SO THESE HAVE LESS GAIN RIGHT?1 answers

Asked by Anonymous on May 25th, 2017.

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